Last for molded footwear.



PATENTED JULY 14, 1908.

M. c. GLARK, LAST FOR MOLDED FOOTWEAR.

APPLICATION FILED NOV. 10, 1905.

1 mm, WC.

I I I I l I 3 a Mia @37 Hoz Mot f f I UNITED STATES PATENT OFFICE. MAURICE C. CLARK, OF PROVIDENCETRII OFE ISLAND, ASSIGNOR TO MARVEL RUBBER COM- PANY, A CORPORATION OF RHODE ISLAND.

LAST FOR MOLDED FOOTWEAR.

Application filed November 10, 1905.

To all whom it may concern:

Be it known that I, MAURICE C. CLARK, a citizen of the United States, and a resident of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Lasts for Molded Footwear, of which the following is a specification.

The present invention pertains to lasts, and has particular application to a last adapted for use in connection with the manufacture of molded footwear.

In the manufacture of rubber footwear, especially that molded upon machines for this purpose, it is necessary to build up the force of the compressing molds has had a tendency to derange the built up shoe, by crimping or squeezing the material of the lining, the result being that when the machine was removed from the mold a crimp or crease was found in the article, which had a tend ency, not only to weaken and impair the durability of the shoe, when subjected to wear, but in many cases rendered such shoe absolutely unfit for use. In the present instance it is my intention to provide an improved last by which the lining may be held closely upon the last in the process of molding, so that the contact of the metals, in-

.stead of creasing or crimping the shoe, will construction, combination and arrangement of parts set forth in and falling within the scope of the appended claims. And while I have herein shown and described one par ticular embodiment of my invention, I wish it to be understood that I do not confine myself to the precise details of construction herein enumerated as there may be modification and variation without departing from the spirit of the invention or exceeding the scope of the claims.

Specification of Letters Patent.

Patented July 14, 1908.

Serial No. 286,654.

In the accompanying drawings wherein an embodiment of my invention is deline ated, like characters of reference indicate like parts in all the views, and Figure 1 is a view in side elevation of a last embodying my improvements Fig. 2 is a top view of the same, the stem of the last being shown in section; Fig. 3 is a vertical sectional view taken through the last on approximately line 33 of Fig. 1.

Referring now to the accompanying drawings in detail, A indicates the last which is of the ordinary form and contour, and made of any suitable material such as wood, metal, or the like. The upper portion of the shoe is formed with a vertically extending socket 5 for the reception of the post or stem 6 of the last, which post is adapted to be inserted in a suitable carrier in the machine. The side walls of the socket are formed with inwardly extending shoulders or projections 7, 7, making a relatively narrow mouth 8, as an entrance to the socket. Embodied in and carried by each of the shoulders is a pin 9 having a screw point 10 inserted in the body of the last, the upper portion of said pin having a shoulder 11 and a point 12.

In Fig. 3 the lining of the shoe to be molded is indicated at a, said lining as heretofore stated, preferably having a covering of rubber material thereon.

The construction of my last having been described, the operation is substantially as follows: The coated lining is slipped over the last with the upper edges 1) thereof fitting over the points 12 of the pin in the manner shown in Fig. 8, so that the lining is drawn comparatively snugly over the last. The shoe and last when placed in the mold is preferably in an inverted position, and when the side molds close upon the last, the lining at the point e is pressed in'toward the pin, the tendency being to stretch the entire shoe tightly about such last, and the possibility of the lining gripping and wrinkling is obviated.

'IVhile I have shown my construction of lining retaining pin and a certain manner of securing the same at the top of the last, it will, of course, be understood that I do not limit myself to this precise form, my invention being to provide any suitable means for holding the lining snugly upon the last so as to prevent the molds from deranging the same.

Having thus fully described my invention,

What I claim as new and desire to secure by Letters Patent is:

1. A last for molding rubber shoes, comprising a last body, means located outside the area of contact of the molds for holding the lining of a shoe against movement and causing said lining to tighten around said last upon contact of the mold.

2. A last for molding rubber shoes, comprising a body portion, and means located outside the area of contact of the mold for holding and tightening the shoe lining on the last, such means comprising a device engaging With the shoe lining at the mouth thereof.

3. A last for molding rubber shoes having a socket for the reception of the last post or stem, projecting shoulders located outside the socket, and means carried by said shoulders and located outside the area of contact of the molds, for holding and tightening the 20 lining of the shoe to be molded.

4. A last for molding rubber shoes comprising a body portion, a plurality of pins mounted at the upper portion thereof and adapted to engage with op osite sides of the 25 name to this specification in the presence of two subscribing Witnesses.

MAURICE C. CLARK. Witnesses:

ROBERT W. BURBANT, WILLIAM J. BROWN. 

